Improvement in motive mechanism for sewing-machine



`UNITRD STATES PATENT OFFICE-:

JOHN w. JORDAN, or LEXINGTON, VIRGINIA.

IMPROVEMENT IN MOTIVE MECHANISM FOR SEWING-MACHINE.

Specilication forming part of Letters Patent No. 103,891, dated June 7, 1870.

'motion to a driving-shaft, mounted, together with the sewingmachine, on a rocking or swinging frame, either by rockin g or swinging the said frame, to which motion is imparted by the operator mounted on the said frame in a suitable seat.

Figure l is a sectional elevation of the apparatus when adjusted to work by swinging. Fi g. 2 is an -end elevation,'with one part sectioned. Fig. 3 is a sectional elevation of the same when adjusted for rocking.

Similar letters of reference indicate corresponding parts.

A represents a long, rectangular, or other formed bed-frame, composed of two side ba-rs and suitable cross-bars, provided at about the center of a foot-piece, B, pivoted and arranged for adjustment by a set-screw, C. On the bedframe are two high posts, D, with horizontal arms at the top, with holes or other means for attaching similar arms, F, of similar posts or hangers, G, on the bottom of which is attached a swinging or rocking frame, H, on which is placed a seat, I, a sewing-machine, K, anda counter-shaft, L, the latter having a driving wheel, M, for driving the sewin g-machine; also, a balance-wheel, a ratchet-wheel, N, and two loose pulleys, O P,having pawls Q It for working the ratchet-wheel. These pulleys work between parallel bars S, supported obliquely on the frame A, and have belts T working over them and connected at each end to the said parallel bars.

The belt of one pulley extends' from the upper side along the upper parallel bar, and the belt of the other from the lower side, so that pulleys move in the other direction the for ward motion of the ratchet-wheel will be kept up by the pawl of the other pulley.

The swinging motion is imparted to the frame H by the person sitting on the seat I forcing the frame backward by the foot placed over the foot-piece, and letting it swing forward by the action of gravity.

This swinging frame may be detached from the arms E and suspended on pivots placed in holes U in the side bars of the bed-frame and holes in the bars of the frame H, and in order to use it in this way, which may be preferred by some, I change the position of the parallel bars supporting the belts T from the position shown in Fig. l to that shown in Fig. 3, for which purpose it is attached by screws V, or by other suitable means adapted for ready connection and disconnection, the position of the` said bars being such that the belts T are suspended in the direction in which the pulleys O P are caused to move by the swinging of the frame H in the one case and the rocking in the other case.

A number of holes, U, is made in the bars A, also in the bars of frame H, to vary the position ofthe pivot, as may be required.

The frame H maybe suspended on any other suitable support, and the bars S may be attached to the floor.

The frame H is provided with springs W at each end, to be used'when rocking for strik ing the floor or pins on the frame A, arresting the motion of the frame, and starting it in the opposite direction. These springs are held up to the bars when the frames swing by hooks X.

It is manifest that, instead of using the belts T for imparting motion to the pulleys, they may have teeth and gear with teeth on the bars S."

lt is also obvious that when belts are used Having thus described my invention, Iclaim frame A and frame H, pivoted together for the as new and desire to secure by Letters Patsaid frame H'to have a rocking,` motion., of the entparallel bars S, pulleys, ratchets, pawls, belts, 1. Thecombination,Withtheswingingrame, and the counter-shaft L, all substantially as mounted in suitable supports and carrying a specified.

seat, a sewing-machine, and a counter-shaft, 3. The combination, with the frames H, of

and pulley arranged to impart motion to the the springs U, substantially as specified.

sewing-machine, of the pulleys O P, paWls Q JOHN W. JORDAN. R, ratchet-Wheels N, belts T, and the belt-sup- Witnesses: port, substantially as specified. J As. COMPTON,

2.- 'lhe combination, with the supporting- J. J. WATSON. 

